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Benefit Plans
 6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Benefit Plans Benefit Plans
We have a non-contributory defined benefit pension plan, as well as a supplemental executive retirement plan that covered eligible employees through December 31, 2022. Effective January 1, 2023, these plans were frozen (no future benefits will be accrued for participants due to employment and no new participants will be added). Participants in these plans were fully vested in their benefits as of December 31, 2022.
Tables 10.1 and 10.2 provide the components of net periodic benefit cost for our pension, supplemental executive retirement and other postretirement benefit plans for the three and six months ended June 30, 2025 and 2024.
Components of net periodic benefit cost
Table
10.1
Three Months Ended June 30,
Pension and Supplemental Executive Retirement PlansOther Postretirement Benefit Plans
(In thousands)2025202420252024
Company service cost$— $— $235 $417 
Interest cost3,297 3,247 311 375 
Expected return on plan assets(3,442)(3,644)(2,911)(2,494)
Amortization of:
Net actuarial losses (gains)546 523 (693)(380)
Prior service cost (credit)87 86 117 453 
Cost of settlements and curtailments3,680 — — — 
Net periodic benefit cost (benefit)$4,168 $212 $(2,941)$(1,629)
Components of net periodic benefit cost
Table10.2
Six Months Ended June 30,
Pension and Supplemental Executive Retirement PlansOther Postretirement Benefit Plans
(In thousands)2025202420252024
Company service cost$— $— $469 $834 
Interest cost6,596 6,494 622 750 
Expected return on plan assets(6,884)(7,288)(5,822)(4,988)
Amortization of:
Net actuarial losses (gains)1,092 1,046 (1,385)(760)
Prior service cost (credit)173 172 235 906 
Cost of settlements and curtailments3,680 — — — 
Net periodic benefit cost (benefit)$4,657 $424 $(5,881)$(3,258)

In the first quarter of 2025, we made a contribution to our pension plan of $7.5 million.